A learning method for neural networks with a subordinate evaluation function. - Kenji Ohkuma (SAC, 1992)

The Block Cipher Hierocrypt. - Kenji Ohkuma; Hirofumi Muratani; Fumihiko Sano; Shin-ichi Kawamura (Selected Areas in Cryptography, 2000)

Security Assessment of Hierocrypt and Rijndael against the Differential and Linear Cryptanalysis (Extended Abstract). - Kenji Ohkuma; Hideo Shimizu; Fumihiko Sano; Shin-ichi Kawamura (IACR Cryptol. ePrint Arch., 2001)

On the Security of Nested SPN Cipher against the Differential and Linear Cryptanalysis. - Fumihiko Sano; Kenji Ohkuma; Hideo Shimizu; Shinichi Kawamura (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

Template generation for self-position estimation by Genetic Algorithm with indirect fitness inference. - Kae Doki; Kenji Ohkuma; Akihiro Torii; Akiteru Ueda (ICARCV, 2008)

Weak Keys of Reduced-Round PRESENT for Linear Cryptanalysis. - Kenji Ohkuma (Selected Areas in Cryptography, 2009)

Generating Parameters for Algebraic Torus-Based Cryptosystems. - Tomoko Yonemura; Yoshikazu Hanatani; Taichi Isogai; Kenji Ohkuma; Hirofumi Muratani (CANS, 2010)

3D Detection and Tracking of a Moving Object by an Autonomous Underwater Vehicle With a Multibeam Imaging Sonar: Toward Continuous Observation of Marine Life. - Sehwa Chun; Chihaya Kawamura; Kenji Ohkuma; Toshihiro Maki (IEEE Robotics Autom. Lett., 2024)